Your girlfriend really wants to get a dick. You're totally floored by this concept. But she eventually gets you to agree... by saying she'll still give you a LOT of blowjobs AND you can fuck her asshole when you're missing her hole. Even better, she reminds you that her asshole is way tighter, so she'll get the dick she wants and you'll get a better hole! Win:win!

After the surgery, she's sore but really wants to rub it gently. She's wishing she could cum. She encourages you to stroke your own dick and she'll watch, feeling like some kind of "ghost dick" as she gets used to hers and watches yours. But after a while, she says it'll be soon enough before she'll wrap her mouth around that cock and let you slide it in her ass. (By the way, you're looking... cute... today. Hair longer? Maybe?)

Finally, she's healed up and really wanted to stroke. She gets her mouth on that cock of yours and strokes her own as she grinds forward on you. But this just isn't enough for you, you REALLY need to cum inside her hole. And now you've got that tight ass to slip in! She reluctantly agrees, but...

Well, it isn't too long before she realizes that this isn't going to work for her anymore. You're just looking so feminine to her lately, her eyes just seem more WILD than before and in a moment of reflection, she RAMS her fresh cock inside YOUR hole and tells you the roles may just have to reverse here!